You're the one talking about how unknown dudes from the gym are world championship calibre fighters. I'm just wondering why I don't see them on television.
Check my edit. Again, Sub-novice level amateurs have 0 bouts to their name. If you can't figure out the rest then that's on you. That's BS btw, I never said anyone from the gyms I frequent, especially a sub-novice am, was a world championship caliber fighter. I wouldn't expect any less from you though since you pull this kind of shit out of your ass. Analysts, commentators, fans, media members expect to see a world champion caliber fighter look like one. Is that asking too much of them? I don't think so. He's throwing himself off balance when he punches dude, he's all over the place and reckless. Wilder needs to work on his BOXING fundamentals and his overall technical skills to continue to improve as a fighter, especially now that he's a world titlist.
He needs to start with the basics and prioritize them. He can begin by working on his stance, balance and posture. After that, developing reasonably proficient footwork & positioning, movement & respectable defense. Defense through footwork, by working angles when attacking & retreating (stay off the center line & break off of it when you attack), guard usage for blocking, catching & deflecting shots, parrying, ducking (quick level change usually accompanied with a roll) & dipping, range control for keeping opponents at bay in the first place, head movement (preemptive & reactive inside & outside slips), smothering, etc...
with pulling, rolling & relying on reflexes as a last resort. Developing sound punching technique (proper form & mechanics) is necessary in his case especially because there's nothing scientific about it at present and it's certainly a liability when he opens up, even when he's throwing his jab. Keep the damn chin tucked (put a tennis ball under it & drill all day until it becomes habitual), elbows in, eyes on your opponent at all times and your hands up (going back to working behind a guard).
Here's a much longer list that he can strive for as he continues to improve over time.
He needs to get his stance right (again, L×W×H dimensions should be correct with proper foot placement intact), work behind a guard (multiple even for giving different looks & since guards serve different purposes), improve his balance (again), correct posture (again), develop proficient footwork (again, by getting his steps down first), proper punching technique (again, stop telegraphing & become sound), work on transitions (seamlessly between offense to defense & defense to offense), learn to cut the ring off while walking your man down (don't follow them around or simply stalk them), learn proper foot/hand/body & head positioning, fight for head control inside (get it under their chin & create space when in-fighting, position your head over their shoulder & then move it away then back again), work on mobility/foot movement (in & out + lateral movement, tight circling, turning your opponent, etc), work on general defensive responsibility & maintaining it when attacking, learn to control range effectively, make adjustments when necessary (readjust if necessary to counter theirs), learn to fight off the back foot, learn how to take full advantage of your physical attributes, learn how to counter-clinch & shut down holding attempts, learn how to break free from holding efficiently (don't just rip your arms straight back to pull them out), maintain composure (don't get wild & reckless), regulate your pacing to save energy & know when to pick the pace up when your opponent looks to be fading, take the initiative to be first & try to also be last (do both when possible) to get the better of the exchanges, don't give up rounds by being passive/not engaging & look to score even if you're not fully committed to those punches (point fight a very dangerous opponent if necessary using the stick & move/hunt & peck strategy but make sure you get their respect first & as-needed, then repeat), don't give up too much ground to your opponent & look to control the center of the ring (take the center again ASAP if you lose it), practice stealing rounds back that you believe you're losing, gain control back (the flow of the fight) after momentum shifts unfavorably - manage to swing it back in your favor, ability to lead & counter + switch between them (practice both subsequent & simultaneous counters, cross-counter with the jab & rear hand, rock backs, etc), improve ring generalship/ringcraft, develop spatial awareness (understand distance between you & your opponent, the ropes & corners & be able to gauge it well), develop your angular sense (understand how to take angles & actually work off of them from the outside & the inside), learn how to neutralize your opponent & don't fight his fight (fight yours & force them to by imposing your game), enhance your ring vision (part of ring IQ, the ability to read your opponent's next attack), sharpen up your timing when leading/countering/defending, learn how to create openings & break guys down systematically, get your opponent's respect & if you lose it then immediately look to get it back (don't let them start building any momentum), develop basic to intermediate level combination punching, work on several jab variations (develop a stiff authoritative (power) jab to keep guys off of you and/or control range), work on keying off the jab & working the head chest & stomach (they really won't like the chest & stomach), learn how to control their head (head control from all 3 ranges), utilize level changes, develop a body attack & know when to invest in it (try it early & as the fight progresses), mix up offensive variety with combos & single shots (potshotting works too), work the body & head - head & then the body, work on different setups to lay traps for the finish, learn to throw short range straight punches (most fighters don't realize the benefit), develop an active lead hand (educated jab, uppercut, hook), try switch-hitting when sparring and/or utilizing a number of different shifts (advanced), know when to use your physicality (be physical), aim to increase your accuracy & hand speed, aim to increase your foot speed, increase overall versatility by learning to both box & fight (pick your spots intelligently if you're selling out), add to your punch selection & be selective with your shots & their placement, increase ring IQ (learn to think like a technician would), work on fighting from multiple ranges & not just from the outside (working proficiently inside the pocket mid range & when in-fighting), practice working in the clinch & initiating one quickly if you're hurt (natural reaction but some are too slow to get there to recover/survive), find your rhythm but change the tempo & the intensity on your punches from time to time to keep opponents guessing, learn to punch with your opponent instead of just taking turns, look to keep your opponent off balance often and out of position, if you get the chance to blindside your opponent then capitalize on it big, keep them uncomfortable as often as you can throughout the fight, be patient and don't rush your work, don't let them get into their rhythm to start putting anything together, punish them when they try to get off on you, if they do then manage to break their rhythm & force them to reset, add in feints & fakes to your game, etc, etc, etc.